2118236 has 12 divisors (see below), whose sum is σ = 3718512. Its totient is φ = 1055808.

The previous prime is 2118209. The next prime is 2118239. The reversal of 2118236 is 6328112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (309876).

2^2118236 is an apocalyptic number.

It is an amenable number.

2118236 is a deficient number, since it is larger than the sum of its proper divisors (1600276).

2118236 is a wasteful number, since it uses less digits than its factorization.

2118236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1658 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 2118236 is about 1455.4160917071. The cubic root of 2118236 is about 128.4275255345.

The spelling of 2118236 in words is "two million, one hundred eighteen thousand, two hundred thirty-six".